68585360

素因数分解:

$2^4\times 5^1\times {\mathrm{661}}^1\times {\mathrm{1297}}^1$

素因数の和:1971

約数の個数: 40

約数和(自身を含む): 159825336

約数和(自身を除く): 91239976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 661, 1297, 1322, 2594, 2644, 3305, 5188, 5288, 6485, 6610, 10376, 10576, 12970, 13220, 20752, 25940, 26440, 51880, 52880, 103760, 857317, 1714634, 3429268, 4286585, 6858536, 8573170, 13717072, 17146340, 34292680, 68585360]

約数ペア:

[(1, 68585360), (2, 34292680), (4, 17146340), (5, 13717072), (8, 8573170), (10, 6858536), (16, 4286585), (20, 3429268), (40, 1714634), (80, 857317), (661, 103760), (1297, 52880), (1322, 51880), (2594, 26440), (2644, 25940), (3305, 20752), (5188, 13220), (5288, 12970), (6485, 10576), (6610, 10376)]